Chloroplast
Weather Ball, Solar Beam/Blade, Growth act as if used in sun.
36 species 23 as main 13 as innate 6 battle AI weight, −2 to 10 — 6 is the untouched default
In detail
Weather Ball doubles power and becomes Fire-type. Solar moves charge instantly. Growth boosts Attack and Special Attack by 2 stages. Moonlight, Morning Sun, and Synthesis recover 2/3 of your max HP. Grass and Water Pledge creates a sea of fire or rainbow respectively.
Types that carry it
36 species Grass 36 Poison 11 Fairy 4 Bug 2 Flying 2 Normal 2 Psychic 2 Electric 1
As a main ability
23 speciesSelectable — one of up to three, and only one is active.
As an innate
13 speciesAlways on, alongside whichever main ability is chosen.